• Proceedings of the Korean Environmental Health Society Conference
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• 2005.06a
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• pp.399-405
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• 2005

In this study, we investigated the gas chromatography (GC) and pulsed flame photometric detection (PFPD) system for the analysis of four major reduced S compounds including hydrogen sulfide ($H_2S)$; methyl mercaptan ($CH_3SH$); dimethyl sulfide (DMS); and dimethyl disulfide(DMDS) contained in environmental samples. To analyze these compounds in high concentration range (above ppb level), we developed a high mode analytical setting with the loop-injection system. By contrast, we also established a low mode setting for the analysis of low concentration samples (ppt-level samples from ambient air) by the combination with thermal desorption unit(TDU). Comparative analysis of both settings revealed that relative detection properties of four S compounds are systematic enough. The results of high mode analysis indicated that the patterns were systematic among compounds: H2S exhibited the lowest sensitivity, while DMBS showed the strongest one. The results were also compared in terms of sensitivity reductions for all compounds by dividing slope ratios between low and high mode system. Although low mode system exhibited significant reductions on the order of a few tens times, their detection characteristics were highly consistent as it was shown in the high mode setting. To learn more about absolute and relative relations between two different modes of S analysis, future studies may have to be directed to cover more complicated nature of GC/PFPD performance. Hydrogen sulfide($H_2S$) was over in summer about low level of olfactory sense 410 ppt, Methyl mercaptan(C$H_3SH$) was over in apring and summer about low level of olfactory sense 70, Dimethyl sulfide(DMS) was not over in four season about low level of olfactory sense 2,200 ppt. Carbon disulfide($CS_2$) was not over in four deason about Tow level of olfactory sense 210,000, Dimethyl disulfide(DMDS) was not over in summer about low level of olfactory sense2,000.

• Journal of Elementary Mathematics Education in Korea
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• v.8 no.1
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• pp.63-87
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• 2004

This study was composed of series of guidance contents in the sub-field of spatial sense from the 7th curriculum according to the series theory by the level by Gagne & Briggs. As for the guidance contents in this field, this study discovered that it had ‘experiencing the various space senses’,‘operating it mentally (internalization)’, and ‘utilizing and expressing the space sense mathematically’ in order largely. The contents of series constitution by the subject and by the stage, a result of this research, will be helpful to the establishment of achievement standard and valuation standard by the stage.

• Journal of Families and Better Life
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• v.35 no.1
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• pp.125-137
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• 2017

The purpose of this study was to investigate the longitudinal relationship between Korean youth's social withdrawal, depression and community sense mediated by achievement values. For this purpose, we analyzed three years of the longitudinal panel data (2011-2013) of the Korean Children and Youth Panel Survey (KCYPS). Data were collected from 2,351 first year middle school students using the latent growth model using SPSS 18.0 and AMOS 22.0. The main analysis results were as follows. First, social withdrawal and depression decreased and community sense increased as time passed. These results supported the linear change model. Second, the initial status of social withdrawal and depression had effects on the initial status and change rates of community sense. Achievement values, the partial mediator, had a positive influence on initial community sense but had a negative influence on change rates of community sense. We discussed how to improve Korean youth's community sense based on these results.

• Research in Community and Public Health Nursing
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• v.31 no.3
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• pp.269-278
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• 2020

Purpose: The study was conducted to identify the relationship between subjective family class and suicidal ideation and to determine the double mediating effect of social support and sense of coherence on their relationship. Methods: Secondary analysis of data from 2015 Korean Psycho-social Anxiety which was a population-based representative was performed. Double mediating effects of social support and sense of coherence on suicidal ideation were analyzed using the PROCESS macro (model 6) with bootstrapping methods. Results: Subjective family class directly influenced social support (β=.20, p<.001) and sense of coherence (β=.10, p<.001). Subjective family class directly influenced suicide ideation (β=-.08, p<.001). Sense of coherence was directly influenced by social support (β=.28, p<.001). Suicide ideation was indirectly influenced by subjective family class through social support (β=-.22, p<.001) and sense of coherence (β=-.36, p=.001). The size of direct effect of subjective family class on suicide ideation was 0.24 and the total size of indirect effect was 0.12. Conclusion: Intervention to improve social support and sense of coherence is needed to prevent the suicide among adolescents.

• Education of Primary School Mathematics
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• v.9 no.2 s.18
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• pp.119-134
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• 2005

The goals of this study is to analyze develop the materials which help students develop spatial sense in elementary school and to investigate its effects. To accomplish those goals, the 7th National Curriculum was analyzed to identify the contents of spatial sense. After analyzing the 7th National Curriculum, the principle for developing the teaching aids focusing the realization of the contents in the spatial sense was set up. And then various teaching materials which can enhance students' spatial sense was developed. It is consist of 17 kinds of concretely operating materials, 7 kinds of tangram papers, one web-material. To verify the effect of the materials, surveyed the usability of the materials and two classes was selected and tests were administered before and after the treatment. Through this application, several conclusion were drawn. First, a survey result says that teachers thought materials developed would be effective in developing spatial sense. Second, the materials developed were effective to develop spatial sense. The score gained by the experiment group after the treatment was statistically meaningfully higher than the control group. This means that the materials developed helped children to develop spatial sense.

• Research in Community and Public Health Nursing
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• v.20 no.3
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• pp.335-342
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• 2009

Purpose: This study was to identify the degree of the sense of mastery and health-promoting behaviors in the vulnerable female elderly of urban areas, and to determine factors influencing their health-promoting behaviors. Methods: The subjects were 253 vulnerable female elders aged over 60 in D City. Data were collected by a questionnaire survey. Analysis of data was done with the SPSS/WIN program. Results: The mean score of the sense of control was 15.8. It was significantly different according to living arrangement, and subjective health status. The mean score of health-promoting behavior was 3.8. It was significantly different according to living arrangement and subjective health status. Health-promoting behavior was affected more highly in subjects with a low degree of sense of mastery than in those with a medium degree of sense of mastery. Conclusion: These results suggest that the sense of mastery is an important variable for health-promoting behavior. These findings may give useful information for developing health-promoting programs focused on the sense of mastery in vulnerable female elderly adults.

• Journal of Digital Convergence
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• v.15 no.1
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• pp.497-507
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• 2017

The purpose of this study was to investigate the relationship among major satisfaction, career preparation behavior and career sense maturity of sports-related university students. To achieve the objective of this study 221 students in sports-related university were investigated with convenience sampling method. Frequency analysis, exploratory factor analysis, confirmatory factor analysis, correlations analysis and structural equation model analysis were executed using SPSS Statistics v21 and SPSS Amos v21. As the results, the following conclusion was derived. First, it was discovered that the major satisfaction had static influence to the career preparation behavior. Second, it showed that the major satisfaction gave static influence to the career sense maturity. Third, it showed that the career preparation behavior affected the career sense maturity.

• Journal of the Korean Institute of Landscape Architecture
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• v.30 no.5
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• pp.66-77
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• 2002

The purpose of this paper is to study the relationship between the sense of place attachment and citizen participation in urban park management. This case study focuses on the 'Shim-Teo' Children's Park in DongDaeMun-Gu in Seoul. This study used questionnaires. The data was collected from June 24 to 26, 2002 from a random sampling of visitors to the park who were over twenty years old. Final analysis utilized a total of 83 samples from the 91 respondents. This suey included Questions on Place attachment and the sense of the citizen participation. The results of this study can be summarized as follows; 1. For citizen participation in urban park management, it showed that the more respondents had a sense of the place attachment, the more they had a sense of responsibility for citizen participation in urban park management. The significant difference of the sense of the citizen participation between the two groups was their sense of place attachment. 2. For respondents reasons not to participate in park management, there was a tendency that the less respondents had a sense of place attachment, the more they answered that 'they have no idea how to participate in park management' and 'they have no time to participate in park management'. And the significant difference in the sense of citizen participation between the two groups was the place attachment. 3. It was shown that the respondents sense of citizen participation in urban park management was directly related to their sense of place attachment to the park. It was also shown that the reasons which dissuaded them from participating in urban park managements were other factors.

• Child Health Nursing Research
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• v.24 no.4
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• pp.506-516
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• 2018

Purpose: The purpose of this study was to investigate psychological capital, sense of community and stress in relation to school adjustment and to identify factors influencing school adjustment in middle school students. Methods: This study population consisted of 150 middle school students. Data were analyzed using t-test, analysis of variance, Pearson correlation coefficient, and multiple regression analysis. Results: The mean score for school adjustment in middle school students was 3.68 out of 5 points. School adjustment explained 34% of the variance in sense of community (${\beta}=.39$, p<.001), positive psychological capital (${\beta}=.35$, p<.001), academic performance (${\beta}=.26$, p<.001), and stress (${\beta}=-.21$, p<.001). Conclusion: The results of our research suggest that sense of community is an important variable influencing school adjustment in middle school students. Therefore, to promote school adjustment in middle school students, it is necessary to develop and implement active educational strategies promoting sense of community, positive psychological capital, academic perfomance, and controlling stress.

• Korean Institute of Interior Design Journal
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• v.19 no.5
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• pp.198-208
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• 2010

The purpose of this study is to elicit the planning factors for the embodiment of sense of place in public library. This study analyzes qualitatively the good places where the children seek for and evaluate in children's library. The primary method of survey in this study is the caption evaluation. The survey is conducted in libraries of three types. In the caption evaluation, children take good places into photograph by themselves and are asked for reasons, features and physical characteristics for the pictures on good places. Through the study of the preceding studies, this study takes four analysis frames, Path, Occupancy Place, Edge and Mark. According to four analysis frames, the principal features, physical characteristics and the examples in libraries of domestic and foreign country are put in order. The meanings of this study are summarized as followings; presenting the method of user's positive evaluation, studying the sense of place in children's view point, and presenting the interrelation pattern for embodiment of the rich sense of place.